Abstract
A device for preventing rail vehicles from riding up includes an energy absorbing element extended in longitudinal direction, having a hollow inside, a fastening side for fastening to one of the rail vehicles and an impact side facing away from the fastening side. A flange fastened to the impact side of the energy absorbing element has an impingement surface facing away from the fastening side. The flange protrudes in at least one vertical direction beyond a contour delimited by the energy absorbing element on the impact side, forming a holding web protruding beyond the energy absorbing element. The device provides effective ride-up protection for identically and differently equipped rail vehicles by equipping a free end of the holding web with at least one vertical stop extending up from the impingement surface, and providing a device for moving the vertical stop upon an impact loading in longitudinal direction.
Claims
1. A device for preventing rail vehicles from riding up, the device comprising: an energy absorbing element extending in a longitudinal direction and having a hollow inside, a fastening side configured to be fastened to one of the rail vehicles, an impact side facing away from said fastening side and a contour delimited by said impact side; a flange fastened to said impact side and having an impingement surface facing away from said fastening side, said flange projecting beyond said contour in at least one vertical direction to form a holder web projecting beyond said energy absorbing element and having a free end; a vertical stop disposed at said free end of said holder web and projecting from said impingement surface; and a device for shifting said vertical stop in said longitudinal direction during an impact stress, said device for shifting said vertical stop including a fastening device for fastening said vertical stop to said holder web and permitting said vertical stop to shift in said holder web towards said fastening side in the event of the impact stress.
2. The device according to claim 1, wherein said device for shifting said vertical stop is formed by dimensioning said holder web to be bent in said longitudinal direction towards said fastening side in the event of the impact stress.
3. The device according to claim 1, wherein said impingement surface protrudes beyond said contour of said impact side of said energy absorbing element (2) in two vertical directions facing away from one another.
4. The device according to claim 1, wherein said energy absorbing element has a guide tube extending out within said energy absorbing element from said impact side to said fastening side.
5. The device according to claim 4, wherein said guide tube is configured to engage in a cutout provided in the rail vehicle.
6. The device according to claim 5, which further comprises guide elements for telescopically extending said guide tube through to the cutout.
7. A rail vehicle, comprising two of the devices according to claim 6.
8. A rail vehicle, comprising a device according to claim 1.
9. A device for preventing rail vehicles from riding up, the device comprising: an energy absorbing element extending in a longitudinal direction and having a hollow inside, a fastening side configured to be fastened to one of the rail vehicles, an impact side facing away from said fastening side and a contour delimited by said impact side; a flange fastened to said impact side and having an impingement surface facing away from said fastening side, said flange projecting beyond said contour in at least one vertical direction to form a holder web projecting beyond said energy absorbing element and having a free end; a vertical stop disposed at said free end of said holder web and projecting from said impingement surface, said vertical stop being a stop web extending at right angles to said holder web; and a device for shifting said vertical stop in said longitudinal direction during an impact stress.
10. A device for preventing rail vehicles from riding up, the device comprising: an energy absorbing element extending in a longitudinal direction and having a hollow inside, a fastening side configured to be fastened to one of the rail vehicles, an impact side facing away from said fastening side and a contour delimited by said impact side; a flange fastened to said impact side and having an impingement surface facing away from said fastening side, said impingement surface having ribs, said flange projecting beyond said contour in at least one vertical direction to form a holder web projecting beyond said energy absorbing element and having a free end; a vertical stop disposed at said free end of said holder web and projecting from said impingement surface; and a device for shifting said vertical stop in said longitudinal direction during an impact stress.
Description
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
(1) Further expedient embodiments and advantages of the invention are the subject matter of the description given below of exemplary embodiments of the invention, which refer to the figures of the drawing, wherein the same reference characters refer to components having the same effect and wherein
(2) FIGS. 1 to 5 show exemplary embodiments of a side view of the inventive device in a position installed on the rail vehicle,
(3) FIG. 6 show the device according to FIG. 1 in a front view
(4) FIGS. 7 to 9 illustrate further embodiments of the invention during a collision.
DESCRIPTION OF THE INVENTION
(5) FIG. 1 shows an exemplary embodiment of the inventive device 1 schematically in a side view. The inventive device 1 has an energy absorbing element 2 having a fastening side 3 with which it is fastened to a cross member 4 of a rail vehicle 5. The energy absorbing element 2 extends in a longitudinal direction which matches the direction of travel of the rail vehicle 5. At its end facing away from the fastening side 3 the energy absorbing element 2 forms an impact side 6 to which a flange 7 is fastened. The flange 7 protrudes beyond the outer contour of the energy absorbing element 2 on the impact side 6 while forming holding webs 8 and 9 which extend at right angles to the longitudinal direction, i.e. upwards or downwards respectively here. At the free end of the holding web 8 a vertical stop 10 can be seen, which protrudes from an impingement surface 11 of the flange 7. In the exemplary embodiment shown in FIG. 1 the vertical stop 10 is realized as a stop web which extends at right angles to the holding web 8.
(6) FIG. 2 shows a further exemplary embodiment of the inventive device 1, which differs from that shown in FIG. 1 merely in the embodiment of the flange 7. In accordance with FIG. 2 the flange 7 projects beyond the contour of the energy absorbing element at the impact side 6 only in a vertical direction, i.e. only upwards. FIG. 2 shows however that the vertical stop 10 is held with the aid of fastening means 12 on the holding web, wherein the fastening means 12 comprises a fastening plate 13 and also a rivet connection 14. Through the rivet connection 14 the vertical stop 10 is fastened to the fastening plate 13 welded to the flange. A sufficiently large impact stress in the longitudinal direction results in the fracture of the rivet connection 14 so that a displacement of the vertical stop 10 in the holding web 8 towards the fastening side 3 is made possible.
(7) FIG. 3 shows a further exemplary embodiment of the inventive device which merely differs from the exemplary embodiment shown in FIG. 1 in that the lower holding web 9 is somewhat lengthened and is likewise equipped with a vertical stop 10.
(8) FIG. 4 shows a further exemplary embodiment of the inventive device which merely differs from the exemplary embodiment shown in FIG. 3 in that the device 1 has a guide tube 15 which extends out within the energy absorbing element 2 from the impact side 6 to the fastening side 3. A cutout 16 is provided in the cross member 4 of the rail vehicle 5. Disposed in the cutout 16 is a guide element 17 in the form of a holder tube. The holder tube 17 extends the guide tube 15 telescopically towards the cutout 16. The guide tube 15 disposed centrally in the energy absorbing element as well as the guide element 17 are connected to one another by a clamp seat. In a collision the guide tube 15 is pushed into the guide element 17. Because of the telescopic extension the result is axial guidance of the movement of the energy absorbing element 2, so that the ride-up protection 15 is improved.
(9) The exemplary embodiment shown in FIG. 5 corresponds to the exemplary embodiment shown in FIG. 4. However the holder plate 7 according to FIG. 5 is equipped with ribs 18 which, as already described, can take up vertical forces on engagement with other ribs in order in this way to prevent a ride-up of the colliding parties.
(10) FIG. 6 shows the exemplary embodiment according to FIG. 1 in an end face view, wherein it can be seen that the rail vehicle is equipped with two devices 1 which are each disposed on the side of the rail vehicle 5. Thus the inventive device 1 serves as a side buffer.
(11) FIG. 7 shows a further exemplary embodiment of the invention at the beginning of a collision. The exemplary embodiment of the inventive device 1 shown in FIG. 7 differs from the exemplary embodiment shown in FIG. 1 merely in that ribs 18 are embodied on the flange 7. FIG. 7 shows a collision with a rail vehicle which is equipped with a similar device 1. However a vertical offset between the energy absorbing elements 2 can be seen, in the sense that in FIG. 7 the device shown on the right is disposed somewhat higher than the device shown on the left. It can be seen that the holding web 8 of the left-hand device is dimensioned so that it has a thickness and length which makes it possible for the holding web 8 to bend towards the fastening side 3 of the energy absorbing element 2. Thus the ribs 18 of the two flanges 7 can effectively engage with one another before an irreversible deformation of the energy absorbing element 2 results, so that an effective ride-up protection is provided.
(12) FIG. 8 shows the exemplary embodiment shown in FIG. 7 in the event of a collision with a buffer 19, which has a smooth surface 20. The smooth surface 20 does not have any ribs. Thus the ribs 18 of the inventive device 1 can also not provide any effective ride-up protection. However in this case, as is shown in FIG. 8, the vertical stop 10 prevents an undesired riding-up of the colliding party 19.
(13) FIG. 9 shows the case of a collision between two devices in accordance with the exemplary embodiment shown in FIG. 2. It can be seen that the collision, i.e. the impact stress of the vertical stop 10 in the longitudinal direction, causes the rivet connection 14 to fracture. Thus a displacement of the vertical stop 10 in relation to the fastening plate 13, which is welded rigidly in the holding web 8, is made possible. The displacement makes it possible for the ribs 18 to engage with one another so that an effective ride-up protection within the framework of the invention is provided.
